ClipArt File (NCTM, April 2003).

ClipArt Answers (NCTM, April 2003)

Classification of Triangles (NCTM, April 2003)

Creating Triangles (NCTM, April 2003)

Transformations (NCTM, April 2003)

Going in Circle with Sketchpad (ICTCM, Oct. 2003)

Getting To Know…Geometer’s Sketchpad (ICTCM, Oct. 2004)

Triangles & Quadrilaterals

Tricenters Template & Answers

Clipart & Triangles (TechTrends)

GSP Tools

Geometer’s Sketchpad 4 Trial Teacher Download

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